This video is a useful one to restore sound in our PC. If the audio or sound systems does not functions in your system this video will surely help. This video has many solution to the problem and any of these solutions will certainly help you to rectify the problem. First this video instructs us to check whether the service for sound is enabled or not. Then it describes about the drivers needed for the sound. Some of the drivers may be outdated so that type of drivers must be updated for the functioning of sound. In some cases the driver for the audio device may not be installed, for that type of reasons the video helps us how to find and install the necessary driver for that audio device. After watching this video you will surely be rectifying the sound or audio problem in you PC.